diff --git a/synapse/config/registration.py b/synapse/config/registration.py
index 9bb3beedbc..ee737eb40d 100644
--- a/synapse/config/registration.py
+++ b/synapse/config/registration.py
@@ -129,6 +129,10 @@ class RegistrationConfig(Config):
raise ConfigError("Invalid auto_join_rooms entry %s" % (room_alias,))
self.autocreate_auto_join_rooms = config.get("autocreate_auto_join_rooms", True)
+ self.enable_set_displayname = config.get("enable_set_displayname", True)
+ self.enable_set_avatar_url = config.get("enable_set_avatar_url", True)
+ self.enable_3pid_changes = config.get("enable_3pid_changes", True)
+
self.disable_msisdn_registration = config.get(
"disable_msisdn_registration", False
)
@@ -330,6 +334,19 @@ class RegistrationConfig(Config):
#email: https://example.com # Delegate email sending to example.com
#msisdn: http://localhost:8090 # Delegate SMS sending to this local process
+ # If disabled, don't let users set their own display names/avatars
+ # (unless they are a server admin) other than for the very first time.
+ # Useful when provisioning users based on the contents of a 3rd party
+ # directory and to avoid ambiguities.
+ #
+ #enable_set_displayname: true
+ #enable_set_avatar_url: true
+
+ # If false, stop users from trying to change the 3PIDs associated with
+ # their accounts.
+ #
+ #enable_3pid_changes: true
+
# Users who register on this homeserver will automatically be joined
# to these rooms
#
diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py
index 50ce0c585b..6aa1c0f5e0 100644
--- a/synapse/handlers/profile.py
+++ b/synapse/handlers/profile.py
@@ -157,6 +157,15 @@ class BaseProfileHandler(BaseHandler):
if not by_admin and target_user != requester.user:
raise AuthError(400, "Cannot set another user's displayname")
+ if not by_admin and not self.hs.config.enable_set_displayname:
+ profile = yield self.store.get_profileinfo(target_user.localpart)
+ if profile.display_name:
+ raise SynapseError(
+ 400,
+ "Changing display name is disabled on this server",
+ Codes.FORBIDDEN,
+ )
+
if len(new_displayname) > MAX_DISPLAYNAME_LEN:
raise SynapseError(
400, "Displayname is too long (max %i)" % (MAX_DISPLAYNAME_LEN,)
@@ -218,6 +227,13 @@ class BaseProfileHandler(BaseHandler):
if not by_admin and target_user != requester.user:
raise AuthError(400, "Cannot set another user's avatar_url")
+ if not by_admin and not self.hs.config.enable_set_avatar_url:
+ profile = yield self.store.get_profileinfo(target_user.localpart)
+ if profile.avatar_url:
+ raise SynapseError(
+ 400, "Changing avatar is disabled on this server", Codes.FORBIDDEN
+ )
+
if len(new_avatar_url) > MAX_AVATAR_URL_LEN:
raise SynapseError(
400, "Avatar URL is too long (max %i)" % (MAX_AVATAR_URL_LEN,)
diff --git a/synapse/rest/client/v2_alpha/account.py b/synapse/rest/client/v2_alpha/account.py
index dc837d6c75..e40136f2f3 100644
--- a/synapse/rest/client/v2_alpha/account.py
+++ b/synapse/rest/client/v2_alpha/account.py
@@ -599,6 +599,11 @@ class ThreepidRestServlet(RestServlet):
return 200, {"threepids": threepids}
async def on_POST(self, request):
+ if not self.hs.config.enable_3pid_changes:
+ raise SynapseError(
+ 400, "3PID changes are disabled on this server", Codes.FORBIDDEN
+ )
+
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
body = parse_json_object_from_request(request)
@@ -643,6 +648,11 @@ class ThreepidAddRestServlet(RestServlet):
@interactive_auth_handler
async def on_POST(self, request):
+ if not self.hs.config.enable_3pid_changes:
+ raise SynapseError(
+ 400, "3PID changes are disabled on this server", Codes.FORBIDDEN
+ )
+
requester = await self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
body = parse_json_object_from_request(request)
@@ -738,10 +748,16 @@ class ThreepidDeleteRestServlet(RestServlet):
def __init__(self, hs):
super(ThreepidDeleteRestServlet, self).__init__()
+ self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
async def on_POST(self, request):
+ if not self.hs.config.enable_3pid_changes:
+ raise SynapseError(
+ 400, "3PID changes are disabled on this server", Codes.FORBIDDEN
+ )
+
body = parse_json_object_from_request(request)
assert_params_in_dict(body, ["medium", "address"])
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